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Your message was not delivered due to the following reason:

Your message was not delivered because the destination server was
unreachable within the allowed queue period. The amount of time
a message is queued before it is returned depends on local configura-
tion parameters.

Most likely there is a network problem that prevented delivery, but
it is also possible that the computer is turned off, or does not
have a mail system running right now.

Your message was not delivered within 5 days:
Host 86.112.1.86 is not responding.

The following recipients could not receive this message:
<nanog@nanog.org>

Please reply to postmaster@ieee.uow.edu.au
if you feel this message to be in error.

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